KR102470714B1 - 스퍼터링 타깃, 산화물 반도체 박막, 박막 트랜지스터 및 전자 기기 - Google Patents
스퍼터링 타깃, 산화물 반도체 박막, 박막 트랜지스터 및 전자 기기 Download PDFInfo
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Abstract
Description
도 1B 는, 본 발명의 일 실시형태에 관련된 타깃의 형상을 나타내는 사시도이다.
도 1C 는, 본 발명의 일 실시형태에 관련된 타깃의 형상을 나타내는 사시도이다.
도 1D 는, 본 발명의 일 실시형태에 관련된 타깃의 형상을 나타내는 사시도이다.
도 2 는, 본 발명의 일 실시형태에 관련된 박막 트랜지스터를 나타내는 종단면도이다.
도 3 은, 본 발명의 일 실시형태에 관련된 박막 트랜지스터를 나타내는 종단면도이다.
도 4 는, 본 발명의 일 실시형태에 관련된 양자 터널 전계 효과 트랜지스터를 나타내는 종단면도이다.
도 5 는, 양자 터널 전계 효과 트랜지스터의 다른 실시형태를 나타내는 종단면도이다.
도 6 은, 도 5 에 있어서, p 형 반도체층과 n 형 반도체층 사이에 산화실리콘층이 형성된 부분의 TEM (투과형 전자 현미경) 사진이다.
도 7A 는, 양자 터널 전계 효과 트랜지스터의 제조 순서를 설명하기 위한 종단면도이다.
도 7B 는, 양자 터널 전계 효과 트랜지스터의 제조 순서를 설명하기 위한 종단면도이다.
도 7C 는, 양자 터널 전계 효과 트랜지스터의 제조 순서를 설명하기 위한 종단면도이다.
도 7D 는, 양자 터널 전계 효과 트랜지스터의 제조 순서를 설명하기 위한 종단면도이다.
도 7E 는, 양자 터널 전계 효과 트랜지스터의 제조 순서를 설명하기 위한 종단면도이다.
도 8A 는, 본 발명의 일 실시형태에 관련된 박막 트랜지스터를 사용한 표시 장치를 나타내는 상면도이다.
도 8B 는, VA 형 액정 표시 장치의 화소에 적용할 수 있는 화소부의 회로를 나타내는 도면이다.
도 8C 는, 유기 EL 소자를 사용한 표시 장치의 화소부의 회로를 나타내는 도면이다.
도 9 는, 본 발명의 일 실시형태에 관련된 박막 트랜지스터를 사용한 고체 촬상 소자의 화소부의 회로를 나타내는 도면이다.
도 10 은, 실시예에 있어서, In : Sn : Zn = 30 : 15 : 55 의 경우의 산화물 소결체의 X 원소 함유량과 평균 항절력의 관계를 나타내는 도면이다.
도 11 은, 실시예에 있어서, In : Sn : Zn = 30 : 15 : 55 의 경우의 산화물 소결체의 X 원소 함유량과 상대 밀도의 관계를 나타내는 도면이다.
도 12 는, 실시예에 있어서, In : Sn : Zn = 30 : 15 : 55 의 경우의 산화물 소결체의 X 원소 함유량과 벌크 저항의 관계를 나타내는 도면이다.
도 13 은, 실시예에 있어서, In : Sn : Zn = 30 : 15 : 55 의 경우의 산화물 소결체의 X 원소 함유량과 와이블 계수의 관계를 나타내는 도면이다.
도 14 는, 실시예에 있어서, In : Sn : Zn = 30 : 15 : 55 의 경우의 산화물 소결체의 X 원소 함유량과 평균 결정 입경의 관계를 나타내는 도면이다.
도 15 는, 실시예에 있어서, 산화물 소결체에 X 원소로서 GeO2, SiO2, Y2O3, ZrO2, Al2O3, MgO, 또는 Yb2O 를 0.1 원자% 함유시킨 경우, 및 X 원소를 함유시키지 않은 경우의 평균 항절력을 나타내는 도면이다.
3 : 배킹 플레이트
20 : 실리콘 웨이퍼
30 : 게이트 절연막
40 : 산화물 반도체 박막
50 : 소스 전극
60 : 드레인 전극
70 : 층간 절연막
70A : 층간 절연막
70B : 층간 절연막
100 : 박막 트랜지스터
100A : 박막 트랜지스터
300 : 기판
301 : 화소부
302 : 제 1 주사선 구동 회로
303 : 제 2 주사선 구동 회로
304 : 신호선 구동 회로
310 : 용량 배선
312 : 게이트 배선
313 : 게이트 배선
314 : 드레인 전극
316 : 트랜지스터
317 : 트랜지스터
318 : 제 1 액정 소자
319 : 제 2 액정 소자
320 : 화소부
321 : 스위칭용 트랜지스터
322 : 구동용 트랜지스터
3002 : 포토다이오드
3004 : 전송 트랜지스터
3006 : 리셋 트랜지스터
3008 : 증폭 트랜지스터
3010 : 신호 전하 축적부
3100 : 전원선
3110 : 리셋 전원선
3120 : 수직 출력선
Claims (14)
- 인듐 원소 (In), 주석 원소 (Sn), 아연 원소 (Zn), X 원소, 및 산소를 함유하고, 각 원소의 원자비가 하기 식 (1) 을 만족하고, 추가로 Zn2SnO4 로 나타내는 스피넬 구조 화합물을 포함하는, 산화물 소결체를 구비하는, 스퍼터링 타깃.
0.005 ≤ X/(In + Sn + Zn + X) < 0.01 ··· (1)
(식 (1) 중, In, Zn, Sn 및 X 는, 각각 산화물 소결체 중의 인듐 원소, 아연 원소, 주석 원소 및 X 원소의 함유량을 나타낸다. X 원소는, Ge, Si, Al, Mg, Yb, 및 Ga 로부터 적어도 1 종 이상이 선택된다.) - 제 1 항에 있어서,
추가로 상기 산화물 소결체가, 하기 식 (2) 를 만족하는, 스퍼터링 타깃.
0.40 ≤ Zn/(In + Sn + Zn) ≤ 0.80 ··· (2) - 제 1 항에 있어서,
추가로 상기 산화물 소결체가, 하기 식 (3) 을 만족하는, 스퍼터링 타깃.
0.15 ≤ Sn/(Sn + Zn) ≤ 0.40 ··· (3) - 제 1 항에 있어서,
추가로 상기 산화물 소결체가, 하기 식 (4) 를 만족하는, 스퍼터링 타깃.
0.10 ≤ In/(In + Sn + Zn) ≤ 0.35 ··· (4) - 제 1 항에 있어서,
상기 산화물 소결체는, In2O3(ZnO)m (m 은 2 ∼ 7 이다) 으로 나타내는 육방정 층상 화합물을 포함하는, 스퍼터링 타깃. - 제 1 항에 있어서,
상기 산화물 소결체는, 평균 항절력이 150 ㎫ 이상인, 스퍼터링 타깃. - 제 1 항에 있어서,
상기 산화물 소결체는, 평균 항절력의 와이블 계수가 7 이상인, 스퍼터링 타깃. - 제 1 항에 있어서,
상기 산화물 소결체는, 평균 결정 입경이 10 ㎛ 이하이고, 육방정 층상 화합물의 평균 결정 입경과, 스피넬 화합물의 평균 결정 입경의 차가 1 ㎛ 이하인, 스퍼터링 타깃. - 제 1 항에 있어서,
상기 산화물 소결체는, 평균 결정 입경이 10 ㎛ 이하이고, 빅스바이트 구조 화합물의 평균 결정 입경과, 스피넬 화합물의 평균 결정 입경의 차가 1 ㎛ 이하인, 스퍼터링 타깃. - 인듐 원소 (In), 주석 원소 (Sn), 아연 원소 (Zn), X 원소, 및 산소를 함유하고, 각 원소의 원자비가 하기 식 (1A) 를 만족하는, 산화물 반도체 박막.
0.005 ≤ X/(In + Sn + Zn + X) < 0.01 ··· (1A)
(식 (1A) 중, In, Zn, Sn 및 X 는, 각각 산화물 반도체 박막 중의 인듐 원소, 아연 원소, 주석 원소 및 X 원소의 함유량을 나타낸다. X 원소는, Ge, Si, Al, Mg, Yb, 및 Ga 로부터 적어도 1 종 이상이 선택된다.) - 제 10 항에 기재된 산화물 반도체 박막을 사용한, 박막 트랜지스터.
- 제 11 항에 기재된 박막 트랜지스터를 사용한, 전자 기기.
- 삭제
- 삭제
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CN110767745A (zh) * | 2019-09-18 | 2020-02-07 | 华南理工大学 | 复合金属氧化物半导体及薄膜晶体管与应用 |
EP3828303A1 (en) | 2019-11-28 | 2021-06-02 | Imec VZW | Method for forming a film of an oxide of in, ga, and zn |
WO2021215376A1 (ja) * | 2020-04-23 | 2021-10-28 | 東ソー株式会社 | イットリウムインゴット及びそれを用いたスパッタリングターゲット |
CN112266234A (zh) * | 2020-10-27 | 2021-01-26 | 先导薄膜材料(广东)有限公司 | 一种eitzo靶材及其制备方法 |
CN113793900A (zh) * | 2021-09-14 | 2021-12-14 | 广东工业大学 | 一种基于azo薄膜的阻变存储器及其制备方法 |
CN118159686A (zh) * | 2022-01-31 | 2024-06-07 | 三井金属矿业株式会社 | 溅射靶 |
TWI819633B (zh) * | 2022-05-31 | 2023-10-21 | 光洋應用材料科技股份有限公司 | 氧化銦鈦鋅濺鍍靶材、其薄膜及其製法 |
CN115058695B (zh) * | 2022-08-11 | 2022-11-04 | 广州粤芯半导体技术有限公司 | 溅射方法及半导体器件的制造方法 |
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